16

Q 1. Which of the following is not a water pollutant?
Oil spills
Thermal pollutants
Industrial wastes
Weeds
Q 2. Which of the following gas is released due to the combustion of fuels in insufficient air (oxygen)?
carbon dioxide
carbon monoxide
sulphur dioxide
sulphur tetraoxide
Q 3. The fuels like coal and petroleum contain carbon
sulphur, hydrogen and chlorine
hydrogen, nitrogen and fluorine
nitrogen, phosphorus and potassium
hydrogen, sulphur and nitrogen
Q 4. Which of the following is an example of exhaustible source of energy?
Air
Water
Coal
Biogas
Q 5. Sustainable management of natural resources means:
Using natural resources efficiently
Avoiding their misuse for own purpose
Conservation of these resources
All of these
Q 6. The practice of replenishing forests is known as
Deforestation
Forest regeneration
Silviculture
Sericulture
Q 7. Which of the following helps in the conservation of wildlife?
Building zoos
Breeding animals in captivity
Establishment of national parks
All of these
Q 8. Which of the following crops reQ uire excess water for its growth?
Sugarcane
Wheat
Barley
All of these
Q 9. What is the purpose of making dams?
To allow water to flow into sea collectively
To provide water with uniform temperature
To provide biogas
To provide water and electricity
Q 10. Step wells are locally called
Nadis
Talaos
Bawris
Khadins
Q 11. Why are industrialists greatly interested in the raw materials obtained from forests?
They are easy to process further
They save time
They are not harmful
They are available at cheap rates
Q 12. What is the main aim of conservation?
To preserve the biodiversity
To redistribute the resources
To prevent pollution
To control the growing population
Q 13. When the great Himalayan National Park was formed, the practice of grazing sheep in summer was put to an end. What was the result of stopping this practice?
Wild animals began attacking the meadows.
High quality grass was formed in the meadows.
The shepherds retaliated and attacked the Park.
Fresh growth of grass was prevented in the meadows.
Q 14. Which dam is built on the Sabarmati river?
Ukai Dam
Dhaori Dam
Machhu Dam
Tehri Dam
Q 15. Identify the group which is not a stakeholder of forests?
The paper industries
Government Forest Department
Locals and tribals living in the forest
Women upliftment groups
Q 16. Why don't the tribals and locals exhaust all the forest resources indiscriminately like the industrialists do?
They and their future generations are completely dependent on the forest products.
They love the beauty of the forests.
They are very knowledgeable people.
They try to conserve the biodiversity of the forests.
Q 17. The management of natural resources is important as
They are unlimited in amount
They are not required nowadays
They are not able to produce large amount of energy
They are in limited amount on earth
Q 18. Tehri dam is made on the river:
Yamuna
Ganga
Godavari
Narmada
Q 19. Which of the following is not included in three R's approach?
Reduce
Remediation
Reuse
Recycle
Q 20. Which gas is also known as a green house gas?
Carbon monoxide
Carbon dioxide
Sulphur dioxide
Sulphur tetraoxide

Comments

Post a Comment

Popular posts from this blog

14

Q 1. Choose the incorrect statement We are encouraged to plant more trees so as to ensure clean environment and also provide biomass fuel Gobar-gas is produced when crops, vegetable wastes, etc., decompose in the absence of oxygen The main ingredient of biogas is methane and it gives a lot of smoke and also produces a lot of residual ash. Bio-mass is a renewable source of energy Q 2. Which power plant uses coal to generate electricity? Hydro Power plant Nuclear Power Plant Thermal Power Plant Biogas Power Plant Q 3. The use of charcoal is discouraged even though it is a better fuel than coal, because: charcoal is prepared from destructive distillation of wood Charcoal burns with flames coal has a higher heat generation efficiency coal burns comparatively with less smoke Q 4. The material used for making solar cells is Silver Gold Silicon Copper Q 5. What is the major problem in harnessing nuclear energy? Splitting of the nuclei Duration...
Read more

13

Q 1. The function of commutator or slip ring in a motor is to increase the current flowing through the coil decrease the current flowing through the coil change the direction of current through coil change the direction of magnetic field Q 2. By which instrument the presence of magnetic field can be determined? Magnetic needle Galvanometer   Ammeter Voltmeter Q 3. A beam of alpha particles enters a chamber moving along the magnetic field. The force acting on them is Maximum and perpendicular to the magnetic field Maximum and along the magnetic field Minimum and perpendicular to the magnetic field Zero Q 4. The potential difference maintained between the live wire and neutral wire in India is 240 V 220 V 440 V 420 V Q 5. In Fleming's left-hand rule, which finger points in the direction of the magnetic field? Thumb Index finger Middle finger None of the above Q 6. Strength of induced current is increased when Number of turns ...
Read more